<template>
  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片视图区域-->
    <el-card>
      <!-- 搜索与添加区-->
      <el-row :gutter="20">
        <el-col :span="8">

          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域-->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="状态" prop="mgState">
          <template slot-scope="scope">
            <el-switch
                v-model="scope.row.mgState"
                active-color="#13ce66"
                @change="userStateChange(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="角色" prop="roleName"></el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 编辑按钮-->
            <el-tooltip class="item" effect="dark" content="编辑" placement="top"
                        @click.native="showEditDialog(scope.row.id)">
              <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            </el-tooltip>

            <!-- 删除按钮-->
            <el-tooltip class="item" effect="dark" content="删除" placement="top"
                        @click.native="removeUserById(scope.row.id)">
              <el-button type="danger" icon="el-icon-delete" size="mini"></el-button>
            </el-tooltip>

            <!-- 角色分配按钮-->
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>

      <!--分页区域-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="currentPage"
          :page-sizes="[10,1, 2, 5]"
          :page-size="100"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框-->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
        :close-on-click-modal="false ">

      <!-- 内容主体区域-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部区域-->
      <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!--修改用户对话框-->
    <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
        :close-on-click-modal="false">

      <!--表单区域-->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!--  分配角色的对话框-->
    <el-dialog title="分配角色"
               :visible.sync="setRoleDialogVisible"
               @close="setRoleDialogClosed"
               width="50%">
      <div>
        <p>当前的用户:{{ userInfo.username }}</p>
        <p>当前的角色:{{ userInfo.roleName }}</p>
        <p>分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
                v-for="item in roleList"
                :key="item.roleId"
                :label="item.roleName"
                :value="item.roleId">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible=false">取消</el-button>
        <el-button type="primary" @click="savaRoleInfo">确定</el-button>
      </span>
    </el-dialog>


  </div>
</template>

<script>
export default {
  name: "Users",
  data() {

    //验证手机号的规则
    const checkMobile = (rule, value, callback) => {
      //验证手机号的正则表达式
      const regMobile = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
      if (regMobile.test(value)) return callback();
      callback(new Error('请输入正确的手机号'))
    };
    return {

      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10,

      },
      //用户列表
      userList: [],
      //用户总数
      total: 0,
      //分页-当前页
      currentPage: 1,

      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,

      //编辑用户对话框显示状态
      editDialogVisible: false,

      //查询到的用户信息对象
      editForm: {},

      deleteDialogVisible: false,

      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      //添加用户的表单验证对象
      addFormRules: {
        username: [
          {required: true, message: "请输入用户名", trigger: 'blur'}, //trigger:'blur' 失去焦点触发验证
          {min: 3, max: 10, message: '用户名的长度不能少于3个字符', trigger: 'blur'}
        ],
        password: [
          //required = true 在表单中出现*号
          {required: true, message: "请输入密码", trigger: 'blur'},
          {min: 4, max: 10, message: '用户密码的长度不能少于4个字符', trigger: 'blur'}
        ],

        email: [
          {required: true, message: "请输入邮箱", trigger: 'blur'},
          {type: 'email', message: '请输入合法的邮箱', trigger: 'blur'}
        ],
        mobile: [
          {required: true, message: "请输入手机号", trigger: 'blur'},
          {validator: checkMobile, trigger: 'blur'}
        ]
      },

      //修改表单的验证规则对象
      editFormRules: {
        email: [
          {required: true, message: "请输入邮箱", trigger: 'blur'},
          {type: 'email', message: '请输入正确的邮箱', trigger: 'blur'}
        ],
        mobile: [
          {required: true, message: "请输入手机号", trigger: 'blur'},
          {validator: checkMobile, trigger: 'blur'}
        ]
      },
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,

      //需要被分配角色的用户信息
      userInfo: {},

      //所有角色的数据列表
      roleList: [],

      //选中的角色Id值
      selectRoleId: '',

    }
  },
  created() {
    this.getUserList();
  },
  methods: {

    //删除用户弹框
    removeUserById(id) {
      this.$confirm("此操作将永久删除该用户, 是否继续?", "提示", {
        confirmButtonText: "删除",
        cancelButtonText: "取消",
        type: 'warning'
      }).then(async () => {
        const {data: res} = await this.$http.delete("/users/" + id);
        if (res.meta.status === 200) {
          this.$message.success("删除成功!");
          await this.getUserList();
        } else {
          this.$message.error("服务器繁忙，请稍后再试")
        }
      }).catch(() => {
        this.$message.info("已取消删除");
      })

    },


    //展示用户编辑的对话框
    async showEditDialog(id) {
      const {data: res} = await this.$http.get(`/users/${id}`);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败");
      }
      console.log(res);
      this.editForm = res.data;
      this.editDialogVisible = true;

    },
    //点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return;
        const {data: res} = await this.$http.post("/users", this.addForm)
        if (res.meta.status === 201) this.$message.success("添加用户成功！")
        else this.$message.error("添加用户失败！");
        this.addDialogVisible = false;
        //重新获取用户列表数据
        await this.getUserList();
      })
    },
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    async getUserList() {
      const {data: res} = await this.$http.get('/users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error("数据用户列表失败")
      this.userList = res.data.users;
      this.total = res.data.totalpage;
      console.log(res);
    },
    //监听 pagesieze 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList()
      console.log(newSize);
    },
    //监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList()
      console.log(newPage);
    },
    //监听用户状态
    async userStateChange(userInfo) {
      console.log(userInfo);
      const {data: res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mgState}`)
      console.log(res);
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //修改用户信息提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        const {data: res} = await this.$http.put("/users/" + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile,
        });
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败");
        }
        //关闭对话框
        this.editDialogVisible = false;

        //刷新数据列表
        await this.getUserList();
        //提示修改成功
        this.$message.success("更新数据成功");
      });
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      //在展示对话框之前，展示所有角色列表\
      const {data: res} = await this.$http.get('/roles')
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败");
      }
      this.roleList = res.data;
      this.setRoleDialogVisible = true;
    },
    //点击按钮，分配角色
    async savaRoleInfo() {
      if (this.selectRoleId === null) {
        return this.$message.error("请选择要分配的角色");
      }
      const {data: res} = await this.$http.put(`/users/${this.userInfo.id}/role`,{
        rid: this.selectRoleId
      });
      console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("更新角色失败");
      }
      this.$message.success("更新角色成功");
      await this.getUserList();
      this.setRoleDialogVisible = false;
    },
    //监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectRoleId = '';
      this.userInfo = {};
    }
  }

}
</script>

<style scoped lang="less">

</style>